Separator-drive.



P. B. SHEE.

SEPARATOR DRIVE.

APPLICATloN FILED Amma, i916.

Patented July 17,1917. ,I

2 SHEETS-SHEET l.

P. B. SHEE.

SEPAHATOR DRIVE. APPLICATION FILED IIuG.I6. IsIs.

2 SHEETS-SHEET 2.

JPKE IB. SHEE, OF OAK PARK, ILLINOIS, ASSIGNOR TCSERS, ROEBUCK a coureur,

OF CHICAGO, ILLINOIS,- A CORPORATION OE NEW. YORK.

sErnn'aron-nnrv'n.

inesatte.

To all whom z't may concern:

Be it known that I, PARKE B. Sm, a citizen of the United States, residing at Oak Park, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Separator-Drives, of which the following is a specification.

My invention relates to driving mechanism for centrifugal separators, and the like, and has for its object, the provision of driving mechanism of a flexible nature adapted to yield and prevent irre ar impulses of the driving source to mitted to the separator. is the provision of a simple and eii/cient mechanism of the character mentioned.

of aflexible connection between the two i side of its Hangell 1110.

' 15 in the basen8,` bottom of casing idly together.

Other objects will appear hereinafter.

An embodiment of my invention is shown in the accompanying drawings `fmming a L part of this specification, and in which-'- Figure 1 is an elevation of a creamseparater equipped with driving mechanism vembodying myinvention. o v

Fig. 2 is av fragmental view. of the rear portion .of the separator shownv in Fig. .1.

Fig. 3 is a transverse section .taken sub.- stantially on line 3 3 of Fig. ,4.

Fig. 4 is a view taken on line 44A of Fig. 3; and, v

Fig..5 is an enlarged longitudinal section alining shafts of the drive mechanism.

Referring more particularly to the draw-1l ings, ll have shown a conventional separator having a base 8, supporting fa casing 9. Ordinarily ,interposed between the base 8 drip shelf is held in position by the :outer on the lower end of the casing and the inner sideof its flange 11 fitting over the top of base 8. A screw 14 passes throu ha web and is threade in the 9,:holding the parts righe frame of my improvement is designed to be placed between the drip shelf 10 and base 8 of such conventional creain separators, and the like.I The frame 16 of my.v device .isadapted to Ht under the drip shelf and over the topv of base v8, as shown inA Fig. 4. The screw 14 is adapted to bind ythe frame 16 =of my device between the drip shelf Specication of Letters Patent.

lframe 16 is e trans-. A further object,

v29, to hold them in perforated' and 30, which when `stantial alinem'ent with t v,the shaft 3 0, between and the casing 9, is a drip shelf 10.' 'llhe fittingin a-Hange y12 shafts 19 and 30.

.erably a helical `spring 32 having one endA vsecured to the shaft30.

and base .8, subratentea .nur it. mit.

i Application filed August 16, 1916. Serial No. 115,141.

`stantially as indicated in this ligure. The' provided with an arm 17 which has two spaced upright members 18 formed integrally rllhe members- 18 are provided with alining perforations in which is journaled da horizontal driving shaft19. The driving shaft 19 is provided with a tight pulley 20 and' va loosepulley 21.l The tight pulley may be slightly larger than' the loose pulley 21 when so desired, to lessen the strain on a driving belt, not shown, when the belt is on'v the loose' pulley. For shifting the driving belt fromone-pulley to the other, ahandled rod 22 is mounted in ears 23 on the upright members 18 and provided with two circular finger members 24- which are adapted to engage opposite edges of the driving belt toeect shiftingthe latter. The tight and loose pulleysl and belt-shifting mechanism shown are of .conventional design, and may be substituted for any when so'desired.

'llhe frame 16 is also provided with an' arm 2 5, which is provided with a perforapreferred design,

with or secured rigidly thereto.

tion in which a pin 26.is secured. The pin I 26 is preferably parallel with and. lower than the shaft 19. 0n the an upright bearing member 27 which comprises two upright arms 28 joined by a web i ri 'd relation with each other. The upper endl' .ofthe parts 28 are provide .bearings for a shaft 1n normalosition is in suby the two fixed a flanged pulley 31, `sothatl the will `turn .w1th said shaftBO.

I providea flexible connection between rlhis connection isprefsecured to the shaft 19, and the other end The helical spring 32 may be wound in a direction'so that the driving strains caused by the driving shaft vtend to wind up the spring, or wound so that the springwill tend to unwind as desired. his arrangementv provides means wherebyv a sudden impulse `in shaft-19 will cause the spring to vof the'shock of such impulse. Asa means for strengthening' or stiHening the spring 32, 'I provide one .or more blocks.

yield temporarily and absorb part so pin 26 is pivoted e'shaft 19. On .y

parts 28, is

pulleyl et V roe

stantially the same size as the inner bore of the spring and shorter thanthe distance between shafts 19 and 30, substantially as indicated in Fig. 5. rIhe block 33 may be of `any `preferred substance, and I ind wood serves admirably. The block 33 may be held against longitudinal movement in the spring in any desired manner, and I have shown a staple B1-passing around one turn of the spring and extending through the block 33. On .one of the shafts 35 of the separator shown, I have indicated la pulley 36 in alinement with the pulley 31 on shaft 30. The

pulleys 31 and 36 are connected by an endless belt 37.. The resiliency of spring 32 [tends to hold the shaft in alinement with shaft 19, and belt 37 is preferably of a.

length so that it will be taut when said 4shafts are in alinement. I preferably provide meansfor assisting the spring A32 in holding the belt taut. This may be accomplished in many Ways, and I have shown one way, which comprises forming an arm 38 'rigidly on one of the uprights 28 and con-4 necting the free end of arm 38 with a tension spring 39, the latter having a connec- '35' -r speed andsudden impulses, the spring 32 tion with the casing 9, as at 40. The arm 38 is preferably of a length reaching beyond a straight line drawn between lthe axis of vlwill yield, thereby absorbing parts of the shock of such irregular driving movements,

and l.when sudden strains are placed on belt 37, such strains will cause spring 38 to Y yield, 4permitting member 27 to' swing on fthe pin 26 toward the pulley 36. Such movement of pulley 31 toward-pulley 36 permits belt 37 to slip, and eectively prevents sudden impulses and quick changes of speed in the driving shaft 19 from being Vtransmitted ,to shaft of the separator,

vV/'hile I have illustrated and described s the preferred form of myy invention, I' do not desire to be limited tothe precise detailsv setiforth,but desire to avail myself of such variations and changes as come within the scgperof the appended claims.

I claimz-j.- 1. In combination, a driving connections between said shafts; xed bearshafts; ivotally mounted' lbearings supporting t e intermediate shaft and adapted to swing toward and away from one of said other shafts; and al springcon'nected with the pivoted bearings adapted to place both of said exible connections under strains.

2. In combination, a driving shaft; a

connected with the intermediate shaft eXerting force to maintain said flexible connection taut and tending to move the intermediate shaft out of alinement with the driving shaft.

3. In combination, a cream separator; a shaft mounted for lateral movements; pulleys on the separator and said shaft; an endless belt on said pulleys; a driving shaft; and resilient means connecting said shafts and tending to resiliently hold the firstmentioned shaft in substantial alinement with the driving shaft for holding the belt taut.

4. In combination, a cream separator; a shaft mounted for lateral movements; pulleys on the separator and shaft; a flexible belt on said pulleys; a driving shaft; a helical spring connecting adjacent ends of the shafts tending to hold the movable shaft in substantial alinement with the driving shaft and permitting said movable shaft to yield toward the separator so as to slip the belt under sudden changes of speeds of the driving shaft.

5. In combination, a driving shaft; a driven shaft; an intermediate shaft; pulleys on the driven and intermediate shafts; a belt on said pulleys; a coil s ring connecting the drivin and interme iate shafts normally holding said shafts in alinement and the belt taut, and adapted to permit movement of the intermediate shaft toward said driven shaft to slip the belt under irregular speeds of the drivlng shaft.

6. In combination, fixed bearings; driving and drivenshafts journaled in said bearings; movably mounted bearings; an intermediate shaft ]'ournaled in said movable bearings; pulleys on said intermediate and 'driven shafts; a belt on said pulleys; a coil I the' intermediate shaft out of alinement with shaft; a driven shaft;`an intermediate shaft; flexible the driving shaft and hold said belt taut, said spring being adapted to yield and relieve the driven shaft from shocks due to sudden changes of speed of the driving shaft.

7. In combination, a cream separator; a shaft mounted for lateral movements; pulleys on the separator and shaft; a flexible belt on said pulleys; a driving shaft; a helical spring connecting adjacent ends of the shafts normally holding the movable shaft in substantial alinement ,with the driving' naled in the free en shaft and permitting said movable shaft to'yield toward the separator so as to slip the belt under sudden changes of speed of the driving shaft; and means in said helical spring adapted to strengthen the latter. 8. In combination; a cream separator; a shaft mounted for lateral movements; pulleys on the separator and shaft; a flexible belt on said pulleys; a driving shaft; a helical springfconnecting adjacent ends of the shafts normally holding the movable shaft in substantial alinement with the driving shaft; a block substantially fitting the bore of and disposed in said hellcal sprlng adapted to strengthen the latter andy acilitate holding the laterally movable shaft in axial alinement with the driving shaft and the belt taut.

9. In combination, a cream separator; an arm pivoted on the se arator; a shaft jourdpof said arm; a pulley on the shaft adjacent saidarm; a pulley on the separator; an endless belt on said pulleys; a spring connected with said arm and tending to hold the belt taut; a shaft 'in substantial alinement with the' first-mentioned shaft; and a resilient member operatively connecting said shafts and tending to maintain the latter in alinement.

10. In combination, a cream separator; al

horizontally disposed pin mounted on the separator; a member pivotally mounted on the pin and having two parallel upwardly extending arms thereon; a shaft journaled in the upper ends of said arms; a pulley on said shaft between said arms; a pulley on the separator; an endless belt on the pulleys; a laterally extending arm on one of the first-mentioned arms extending toward the separator; a spring connected to said laterally extending arm and the separator tending to swing the first-mentioned arms away from the separator and. tending to hold the belt taut; a shaft journaled on the separator in-su'bstantial alinement with the first-mentioned shaft when the latter is n its normal position; and a coil spring connecting the shafts together forming a driving connection between said shafts and tending to maintain the latter in alinement.

In testimony whereof I have signed my name to this specification on this 10th day of August, A. D. 1916.

PARKE B. SHEE. 

